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Bug#584583: initramfs-tools: configure_networking function: repeatedly makes DHCP requests



I'm seeing similar (probably the same) issue with klibc ipconfig
failing to obtain DHCP address. Due to this, I cannot boot NFS-root
system using newly-generated initrd image.

I have recompiled ipconfig with -DDEBUG=1, and it seems ipconfig
is failing to use DHCP OFFER response from the server. I tried
both source from 'git' and 'apt-get source (of klibc_1.5.18-1)'.

I have attached debug output of ipconfig and tshark dump taken
at DHCP server. Hope this helps to resove the problem.

Best Regards,
Taisuke Yamada

(initramfs) ipconfig.git -t 3 -c dhcp -d eth0
IP-Config: parse_device: "eth0"
IP-Config: eth0 hardware address 00:16:3e:16:ac:c5 mtu 1500 DHCP
eth0: state = 2
timeout
-> dhcp discover xid 5e901c7e secs 0 vendor_class_identifier "Linux ipconfig"
   udp src 68 dst 67
   ip src 0.0.0.0 dst 255.255.255.255
   bytes 299
<- bytes 342
   ip src 10.253.0.9 dst 10.253.0.235
   udp src 67 dst 68
   dhcp xid 5e901c7e
   dhcp offer
-> dhcp request xid 5e901c7e secs 0 vendor_class_identifier "Linux ipconfig"
   udp src 68 dst 67
   ip src 0.0.0.0 dst 255.255.255.255
   bytes 311
eth0: state = 3
<- bytes 342
   ip src 10.253.0.9 dst 10.253.0.235
   udp src 1 dst 68 freed
eth0: state = 5

Delta: 2 ms

Delta: 0 ms
eth0: state = 5

IP-Config: no response after 3 secs - giving up
(initramfs)
# tshark -V port 67 or port 68
Running as user "root" and group "root". This could be dangerous.
Capturing on eth0
Frame 1 (313 bytes on wire, 313 bytes captured)
    Arrival Time: Jul  7, 2010 12:37:31.534192000
    [Time delta from previous captured frame: 0.000000000 seconds]
    [Time delta from previous displayed frame: 0.000000000 seconds]
    [Time since reference or first frame: 0.000000000 seconds]
    Frame Number: 1
    Frame Length: 313 bytes
    Capture Length: 313 bytes
    [Frame is marked: False]
    [Protocols in frame: eth:ip:udp:bootp]
Ethernet II, Src: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
    Destination: Broadcast (ff:ff:ff:ff:ff:ff)
        Address: Broadcast (ff:ff:ff:ff:ff:ff)
        .... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
        .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
    Source: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
        Address: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
    Type: IP (0x0800)
Internet Protocol, Src: 0.0.0.0 (0.0.0.0), Dst: 255.255.255.255 (255.255.255.255)
    Version: 4
    Header length: 20 bytes
    Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
        0000 00.. = Differentiated Services Codepoint: Default (0x00)
        .... ..0. = ECN-Capable Transport (ECT): 0
        .... ...0 = ECN-CE: 0
    Total Length: 299
    Identification: 0x0000 (0)
    Flags: 0x02 (Don't Fragment)
        0.. = Reserved bit: Not Set
        .1. = Don't fragment: Set
        ..0 = More fragments: Not Set
    Fragment offset: 0
    Time to live: 64
    Protocol: UDP (0x11)
    Header checksum: 0x39c3 [correct]
        [Good: True]
        [Bad : False]
    Source: 0.0.0.0 (0.0.0.0)
    Destination: 255.255.255.255 (255.255.255.255)
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
    Source port: bootpc (68)
    Destination port: bootps (67)
    Length: 279
    Checksum: 0x0000 (none)
        Good Checksum: False
        Bad Checksum: False
Bootstrap Protocol
    Message type: Boot Request (1)
    Hardware type: Ethernet
    Hardware address length: 6
    Hops: 0
    Transaction ID: 0x7e1c905e
    Seconds elapsed: 0
    Bootp flags: 0x0000 (Unicast)
        0... .... .... .... = Broadcast flag: Unicast
        .000 0000 0000 0000 = Reserved flags: 0x0000
    Client IP address: 0.0.0.0 (0.0.0.0)
    Your (client) IP address: 0.0.0.0 (0.0.0.0)
    Next server IP address: 0.0.0.0 (0.0.0.0)
    Relay agent IP address: 0.0.0.0 (0.0.0.0)
    Client MAC address: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
    Client hardware address padding: 00000000000000000000
    Server host name not given
    Boot file name not given
    Magic cookie: (OK)
    Option: (t=53,l=1) DHCP Message Type = DHCP Discover
        Option: (53) DHCP Message Type
        Length: 1
        Value: 01
    Option: (t=55,l=9) Parameter Request List
        Option: (55) Parameter Request List
        Length: 9
        Value: 0103060C0F111A1C28
        1 = Subnet Mask
        3 = Router
        6 = Domain Name Server
        12 = Host Name
        15 = Domain Name
        17 = Root Path
        26 = Interface MTU
        28 = Broadcast Address
        40 = Network Information Service Domain
    Option: (t=60,l=14) Vendor class identifier = "Linux ipconfig"
        Option: (60) Vendor class identifier
        Length: 14
        Value: 4C696E7578206970636F6E666967
    End Option

Frame 2 (313 bytes on wire, 313 bytes captured)
    Arrival Time: Jul  7, 2010 12:37:31.534214000
    [Time delta from previous captured frame: 0.000022000 seconds]
    [Time delta from previous displayed frame: 0.000022000 seconds]
    [Time since reference or first frame: 0.000022000 seconds]
    Frame Number: 2
    Frame Length: 313 bytes
    Capture Length: 313 bytes
    [Frame is marked: False]
    [Protocols in frame: eth:ip:udp:bootp]
Ethernet II, Src: Giga-Byt_0a:fb:e8 (00:1f:d0:0a:fb:e8), Dst: HewlettP_11:45:e0 (00:23:7d:11:45:e0)
    Destination: HewlettP_11:45:e0 (00:23:7d:11:45:e0)
        Address: HewlettP_11:45:e0 (00:23:7d:11:45:e0)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
    Source: Giga-Byt_0a:fb:e8 (00:1f:d0:0a:fb:e8)
        Address: Giga-Byt_0a:fb:e8 (00:1f:d0:0a:fb:e8)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
    Type: IP (0x0800)
Internet Protocol, Src: 10.253.0.9 (10.253.0.9), Dst: 10.253.0.3 (10.253.0.3)
    Version: 4
    Header length: 20 bytes
    Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
        0000 00.. = Differentiated Services Codepoint: Default (0x00)
        .... ..0. = ECN-Capable Transport (ECT): 0
        .... ...0 = ECN-CE: 0
    Total Length: 299
    Identification: 0xe3f9 (58361)
    Flags: 0x00
        0.. = Reserved bit: Not Set
        .0. = Don't fragment: Not Set
        ..0 = More fragments: Not Set
    Fragment offset: 0
    Time to live: 64
    Protocol: UDP (0x11)
    Header checksum: 0x7fc3 [correct]
        [Good: True]
        [Bad : False]
    Source: 10.253.0.9 (10.253.0.9)
    Destination: 10.253.0.3 (10.253.0.3)
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootps (67)
    Source port: bootps (67)
    Destination port: bootps (67)
    Length: 279
    Checksum: 0x968d [validation disabled]
        [Good Checksum: False]
        [Bad Checksum: False]
Bootstrap Protocol
    Message type: Boot Request (1)
    Hardware type: Ethernet
    Hardware address length: 6
    Hops: 1
    Transaction ID: 0x7e1c905e
    Seconds elapsed: 0
    Bootp flags: 0x0000 (Unicast)
        0... .... .... .... = Broadcast flag: Unicast
        .000 0000 0000 0000 = Reserved flags: 0x0000
    Client IP address: 0.0.0.0 (0.0.0.0)
    Your (client) IP address: 0.0.0.0 (0.0.0.0)
    Next server IP address: 0.0.0.0 (0.0.0.0)
    Relay agent IP address: 10.253.0.9 (10.253.0.9)
    Client MAC address: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
    Client hardware address padding: 00000000000000000000
    Server host name not given
    Boot file name not given
    Magic cookie: (OK)
    Option: (t=53,l=1) DHCP Message Type = DHCP Discover
        Option: (53) DHCP Message Type
        Length: 1
        Value: 01
    Option: (t=55,l=9) Parameter Request List
        Option: (55) Parameter Request List
        Length: 9
        Value: 0103060C0F111A1C28
        1 = Subnet Mask
        3 = Router
        6 = Domain Name Server
        12 = Host Name
        15 = Domain Name
        17 = Root Path
        26 = Interface MTU
        28 = Broadcast Address
        40 = Network Information Service Domain
    Option: (t=60,l=14) Vendor class identifier = "Linux ipconfig"
        Option: (60) Vendor class identifier
        Length: 14
        Value: 4C696E7578206970636F6E666967
    End Option

Frame 3 (356 bytes on wire, 356 bytes captured)
    Arrival Time: Jul  7, 2010 12:37:31.534464000
    [Time delta from previous captured frame: 0.000250000 seconds]
    [Time delta from previous displayed frame: 0.000250000 seconds]
    [Time since reference or first frame: 0.000272000 seconds]
    Frame Number: 3
    Frame Length: 356 bytes
    Capture Length: 356 bytes
    [Frame is marked: False]
    [Protocols in frame: eth:ip:udp:bootp]
Ethernet II, Src: HewlettP_11:45:e0 (00:23:7d:11:45:e0), Dst: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
    Destination: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
        Address: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
    Source: HewlettP_11:45:e0 (00:23:7d:11:45:e0)
        Address: HewlettP_11:45:e0 (00:23:7d:11:45:e0)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
    Type: IP (0x0800)
Internet Protocol, Src: 10.253.0.3 (10.253.0.3), Dst: 10.253.0.235 (10.253.0.235)
    Version: 4
    Header length: 20 bytes
    Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
        0000 00.. = Differentiated Services Codepoint: Default (0x00)
        .... ..0. = ECN-Capable Transport (ECT): 0
        .... ...0 = ECN-CE: 0
    Total Length: 342
    Identification: 0x5a1f (23071)
    Flags: 0x00
        0.. = Reserved bit: Not Set
        .0. = Don't fragment: Not Set
        ..0 = More fragments: Not Set
    Fragment offset: 0
    Time to live: 64
    Protocol: UDP (0x11)
    Header checksum: 0x0891 [correct]
        [Good: True]
        [Bad : False]
    Source: 10.253.0.3 (10.253.0.3)
    Destination: 10.253.0.235 (10.253.0.235)
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
    Source port: bootps (67)
    Destination port: bootpc (68)
    Length: 322
    Checksum: 0x183b [validation disabled]
        [Good Checksum: False]
        [Bad Checksum: False]
Bootstrap Protocol
    Message type: Boot Reply (2)
    Hardware type: Ethernet
    Hardware address length: 6
    Hops: 0
    Transaction ID: 0x7e1c905e
    Seconds elapsed: 0
    Bootp flags: 0x0000 (Unicast)
        0... .... .... .... = Broadcast flag: Unicast
        .000 0000 0000 0000 = Reserved flags: 0x0000
    Client IP address: 0.0.0.0 (0.0.0.0)
    Your (client) IP address: 10.253.0.235 (10.253.0.235)
    Next server IP address: 10.253.0.9 (10.253.0.9)
    Relay agent IP address: 0.0.0.0 (0.0.0.0)
    Client MAC address: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
    Client hardware address padding: 00000000000000000000
    Server host name: h
    Boot file name: /pxelinux.0
    Magic cookie: (OK)
    Option: (t=53,l=1) DHCP Message Type = DHCP Offer
        Option: (53) DHCP Message Type
        Length: 1
        Value: 02
    Option: (t=54,l=4) DHCP Server Identifier = 10.253.0.3
        Option: (54) DHCP Server Identifier
        Length: 4
        Value: 0AFD0003
    Option: (t=51,l=4) IP Address Lease Time = 1 hour
        Option: (51) IP Address Lease Time
        Length: 4
        Value: 00000E10
    Option: (t=58,l=4) Renewal Time Value = 30 minutes
        Option: (58) Renewal Time Value
        Length: 4
        Value: 00000708
    Option: (t=59,l=4) Rebinding Time Value = 52 minutes, 30 seconds
        Option: (59) Rebinding Time Value
        Length: 4
        Value: 00000C4E
    Option: (t=1,l=4) Subnet Mask = 255.255.255.0
        Option: (1) Subnet Mask
        Length: 4
        Value: FFFFFF00
    Option: (t=28,l=4) Broadcast Address = 10.253.0.255
        Option: (28) Broadcast Address
        Length: 4
        Value: 0AFD00FF
    Option: (t=15,l=14) Domain Name = "h.rakugaki.org"
        Option: (15) Domain Name
        Length: 14
        Value: 682E72616B7567616B692E6F7267
    Option: (t=6,l=4) Domain Name Server = 10.253.0.3
        Option: (6) Domain Name Server
        Length: 4
        Value: 0AFD0003
    Option: (t=3,l=4) Router = 10.253.0.1
        Option: (3) Router
        Length: 4
        Value: 0AFD0001
    Option: (t=150,l=4) TFTP server address
        Option: (150) TFTP server address
        Length: 4
        Value: 0AFD0009
    End Option

Frame 4 (356 bytes on wire, 356 bytes captured)
    Arrival Time: Jul  7, 2010 12:37:31.534589000
    [Time delta from previous captured frame: 0.000125000 seconds]
    [Time delta from previous displayed frame: 0.000125000 seconds]
    [Time since reference or first frame: 0.000397000 seconds]
    Frame Number: 4
    Frame Length: 356 bytes
    Capture Length: 356 bytes
    [Frame is marked: False]
    [Protocols in frame: eth:ip:udp:bootp]
Ethernet II, Src: HewlettP_11:45:e0 (00:23:7d:11:45:e0), Dst: Giga-Byt_0a:fb:e8 (00:1f:d0:0a:fb:e8)
    Destination: Giga-Byt_0a:fb:e8 (00:1f:d0:0a:fb:e8)
        Address: Giga-Byt_0a:fb:e8 (00:1f:d0:0a:fb:e8)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
    Source: HewlettP_11:45:e0 (00:23:7d:11:45:e0)
        Address: HewlettP_11:45:e0 (00:23:7d:11:45:e0)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
    Type: IP (0x0800)
Internet Protocol, Src: 10.253.0.3 (10.253.0.3), Dst: 10.253.0.9 (10.253.0.9)
    Version: 4
    Header length: 20 bytes
    Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
        0000 00.. = Differentiated Services Codepoint: Default (0x00)
        .... ..0. = ECN-Capable Transport (ECT): 0
        .... ...0 = ECN-CE: 0
    Total Length: 342
    Identification: 0x15fa (5626)
    Flags: 0x00
        0.. = Reserved bit: Not Set
        .0. = Don't fragment: Not Set
        ..0 = More fragments: Not Set
    Fragment offset: 0
    Time to live: 64
    Protocol: UDP (0x11)
    Header checksum: 0x4d98 [correct]
        [Good: True]
        [Bad : False]
    Source: 10.253.0.3 (10.253.0.3)
    Destination: 10.253.0.9 (10.253.0.9)
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootps (67)
    Source port: bootps (67)
    Destination port: bootps (67)
    Length: 322
    Checksum: 0x1759 [validation disabled]
        [Good Checksum: False]
        [Bad Checksum: False]
Bootstrap Protocol
    Message type: Boot Reply (2)
    Hardware type: Ethernet
    Hardware address length: 6
    Hops: 1
    Transaction ID: 0x7e1c905e
    Seconds elapsed: 0
    Bootp flags: 0x0000 (Unicast)
        0... .... .... .... = Broadcast flag: Unicast
        .000 0000 0000 0000 = Reserved flags: 0x0000
    Client IP address: 0.0.0.0 (0.0.0.0)
    Your (client) IP address: 10.253.0.235 (10.253.0.235)
    Next server IP address: 10.253.0.9 (10.253.0.9)
    Relay agent IP address: 10.253.0.9 (10.253.0.9)
    Client MAC address: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
    Client hardware address padding: 00000000000000000000
    Server host name: h
    Boot file name: /pxelinux.0
    Magic cookie: (OK)
    Option: (t=53,l=1) DHCP Message Type = DHCP Offer
        Option: (53) DHCP Message Type
        Length: 1
        Value: 02
    Option: (t=54,l=4) DHCP Server Identifier = 10.253.0.3
        Option: (54) DHCP Server Identifier
        Length: 4
        Value: 0AFD0003
    Option: (t=51,l=4) IP Address Lease Time = 1 hour
        Option: (51) IP Address Lease Time
        Length: 4
        Value: 00000E10
    Option: (t=58,l=4) Renewal Time Value = 30 minutes
        Option: (58) Renewal Time Value
        Length: 4
        Value: 00000708
    Option: (t=59,l=4) Rebinding Time Value = 52 minutes, 30 seconds
        Option: (59) Rebinding Time Value
        Length: 4
        Value: 00000C4E
    Option: (t=1,l=4) Subnet Mask = 255.255.255.0
        Option: (1) Subnet Mask
        Length: 4
        Value: FFFFFF00
    Option: (t=28,l=4) Broadcast Address = 10.253.0.255
        Option: (28) Broadcast Address
        Length: 4
        Value: 0AFD00FF
    Option: (t=15,l=14) Domain Name = "h.rakugaki.org"
        Option: (15) Domain Name
        Length: 14
        Value: 682E72616B7567616B692E6F7267
    Option: (t=6,l=4) Domain Name Server = 10.253.0.3
        Option: (6) Domain Name Server
        Length: 4
        Value: 0AFD0003
    Option: (t=3,l=4) Router = 10.253.0.1
        Option: (3) Router
        Length: 4
        Value: 0AFD0001
    Option: (t=150,l=4) TFTP server address
        Option: (150) TFTP server address
        Length: 4
        Value: 0AFD0009
    End Option

Frame 5 (325 bytes on wire, 325 bytes captured)
    Arrival Time: Jul  7, 2010 12:37:31.539627000
    [Time delta from previous captured frame: 0.005038000 seconds]
    [Time delta from previous displayed frame: 0.005038000 seconds]
    [Time since reference or first frame: 0.005435000 seconds]
    Frame Number: 5
    Frame Length: 325 bytes
    Capture Length: 325 bytes
    [Frame is marked: False]
    [Protocols in frame: eth:ip:udp:bootp]
Ethernet II, Src: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
    Destination: Broadcast (ff:ff:ff:ff:ff:ff)
        Address: Broadcast (ff:ff:ff:ff:ff:ff)
        .... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
        .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
    Source: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
        Address: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
    Type: IP (0x0800)
Internet Protocol, Src: 0.0.0.0 (0.0.0.0), Dst: 255.255.255.255 (255.255.255.255)
    Version: 4
    Header length: 20 bytes
    Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
        0000 00.. = Differentiated Services Codepoint: Default (0x00)
        .... ..0. = ECN-Capable Transport (ECT): 0
        .... ...0 = ECN-CE: 0
    Total Length: 311
    Identification: 0x0000 (0)
    Flags: 0x02 (Don't Fragment)
        0.. = Reserved bit: Not Set
        .1. = Don't fragment: Set
        ..0 = More fragments: Not Set
    Fragment offset: 0
    Time to live: 64
    Protocol: UDP (0x11)
    Header checksum: 0x39b7 [correct]
        [Good: True]
        [Bad : False]
    Source: 0.0.0.0 (0.0.0.0)
    Destination: 255.255.255.255 (255.255.255.255)
User Datagram Protocol, Src Port: bootpc (68), Dst Port: bootps (67)
    Source port: bootpc (68)
    Destination port: bootps (67)
    Length: 291
    Checksum: 0x0000 (none)
        Good Checksum: False
        Bad Checksum: False
Bootstrap Protocol
    Message type: Boot Request (1)
    Hardware type: Ethernet
    Hardware address length: 6
    Hops: 0
    Transaction ID: 0x7e1c905e
    Seconds elapsed: 0
    Bootp flags: 0x0000 (Unicast)
        0... .... .... .... = Broadcast flag: Unicast
        .000 0000 0000 0000 = Reserved flags: 0x0000
    Client IP address: 0.0.0.0 (0.0.0.0)
    Your (client) IP address: 10.253.0.235 (10.253.0.235)
    Next server IP address: 0.0.0.0 (0.0.0.0)
    Relay agent IP address: 0.0.0.0 (0.0.0.0)
    Client MAC address: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
    Client hardware address padding: 00000000000000000000
    Server host name not given
    Boot file name not given
    Magic cookie: (OK)
    Option: (t=53,l=1) DHCP Message Type = DHCP Request
        Option: (53) DHCP Message Type
        Length: 1
        Value: 03
    Option: (t=54,l=4) DHCP Server Identifier = 10.253.0.3
        Option: (54) DHCP Server Identifier
        Length: 4
        Value: 0AFD0003
    Option: (t=50,l=4) Requested IP Address = 10.253.0.235
        Option: (50) Requested IP Address
        Length: 4
        Value: 0AFD00EB
    Option: (t=55,l=9) Parameter Request List
        Option: (55) Parameter Request List
        Length: 9
        Value: 0103060C0F111A1C28
        1 = Subnet Mask
        3 = Router
        6 = Domain Name Server
        12 = Host Name
        15 = Domain Name
        17 = Root Path
        26 = Interface MTU
        28 = Broadcast Address
        40 = Network Information Service Domain
    Option: (t=60,l=14) Vendor class identifier = "Linux ipconfig"
        Option: (60) Vendor class identifier
        Length: 14
        Value: 4C696E7578206970636F6E666967
    End Option

Frame 6 (325 bytes on wire, 325 bytes captured)
    Arrival Time: Jul  7, 2010 12:37:31.539641000
    [Time delta from previous captured frame: 0.000014000 seconds]
    [Time delta from previous displayed frame: 0.000014000 seconds]
    [Time since reference or first frame: 0.005449000 seconds]
    Frame Number: 6
    Frame Length: 325 bytes
    Capture Length: 325 bytes
    [Frame is marked: False]
    [Protocols in frame: eth:ip:udp:bootp]
Ethernet II, Src: Giga-Byt_0a:fb:e8 (00:1f:d0:0a:fb:e8), Dst: HewlettP_11:45:e0 (00:23:7d:11:45:e0)
    Destination: HewlettP_11:45:e0 (00:23:7d:11:45:e0)
        Address: HewlettP_11:45:e0 (00:23:7d:11:45:e0)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
    Source: Giga-Byt_0a:fb:e8 (00:1f:d0:0a:fb:e8)
        Address: Giga-Byt_0a:fb:e8 (00:1f:d0:0a:fb:e8)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
    Type: IP (0x0800)
Internet Protocol, Src: 10.253.0.9 (10.253.0.9), Dst: 10.253.0.3 (10.253.0.3)
    Version: 4
    Header length: 20 bytes
    Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
        0000 00.. = Differentiated Services Codepoint: Default (0x00)
        .... ..0. = ECN-Capable Transport (ECT): 0
        .... ...0 = ECN-CE: 0
    Total Length: 311
    Identification: 0xe3fa (58362)
    Flags: 0x00
        0.. = Reserved bit: Not Set
        .0. = Don't fragment: Not Set
        ..0 = More fragments: Not Set
    Fragment offset: 0
    Time to live: 64
    Protocol: UDP (0x11)
    Header checksum: 0x7fb6 [correct]
        [Good: True]
        [Bad : False]
    Source: 10.253.0.9 (10.253.0.9)
    Destination: 10.253.0.3 (10.253.0.3)
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootps (67)
    Source port: bootps (67)
    Destination port: bootps (67)
    Length: 291
    Checksum: 0x980e [validation disabled]
        [Good Checksum: False]
        [Bad Checksum: False]
Bootstrap Protocol
    Message type: Boot Request (1)
    Hardware type: Ethernet
    Hardware address length: 6
    Hops: 1
    Transaction ID: 0x7e1c905e
    Seconds elapsed: 0
    Bootp flags: 0x0000 (Unicast)
        0... .... .... .... = Broadcast flag: Unicast
        .000 0000 0000 0000 = Reserved flags: 0x0000
    Client IP address: 0.0.0.0 (0.0.0.0)
    Your (client) IP address: 10.253.0.235 (10.253.0.235)
    Next server IP address: 0.0.0.0 (0.0.0.0)
    Relay agent IP address: 10.253.0.9 (10.253.0.9)
    Client MAC address: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
    Client hardware address padding: 00000000000000000000
    Server host name not given
    Boot file name not given
    Magic cookie: (OK)
    Option: (t=53,l=1) DHCP Message Type = DHCP Request
        Option: (53) DHCP Message Type
        Length: 1
        Value: 03
    Option: (t=54,l=4) DHCP Server Identifier = 10.253.0.3
        Option: (54) DHCP Server Identifier
        Length: 4
        Value: 0AFD0003
    Option: (t=50,l=4) Requested IP Address = 10.253.0.235
        Option: (50) Requested IP Address
        Length: 4
        Value: 0AFD00EB
    Option: (t=55,l=9) Parameter Request List
        Option: (55) Parameter Request List
        Length: 9
        Value: 0103060C0F111A1C28
        1 = Subnet Mask
        3 = Router
        6 = Domain Name Server
        12 = Host Name
        15 = Domain Name
        17 = Root Path
        26 = Interface MTU
        28 = Broadcast Address
        40 = Network Information Service Domain
    Option: (t=60,l=14) Vendor class identifier = "Linux ipconfig"
        Option: (60) Vendor class identifier
        Length: 14
        Value: 4C696E7578206970636F6E666967
    End Option

Frame 7 (356 bytes on wire, 356 bytes captured)
    Arrival Time: Jul  7, 2010 12:37:31.540178000
    [Time delta from previous captured frame: 0.000537000 seconds]
    [Time delta from previous displayed frame: 0.000537000 seconds]
    [Time since reference or first frame: 0.005986000 seconds]
    Frame Number: 7
    Frame Length: 356 bytes
    Capture Length: 356 bytes
    [Frame is marked: False]
    [Protocols in frame: eth:ip:udp:bootp]
Ethernet II, Src: HewlettP_11:45:e0 (00:23:7d:11:45:e0), Dst: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
    Destination: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
        Address: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
    Source: HewlettP_11:45:e0 (00:23:7d:11:45:e0)
        Address: HewlettP_11:45:e0 (00:23:7d:11:45:e0)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
    Type: IP (0x0800)
Internet Protocol, Src: 10.253.0.3 (10.253.0.3), Dst: 10.253.0.235 (10.253.0.235)
    Version: 4
    Header length: 20 bytes
    Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
        0000 00.. = Differentiated Services Codepoint: Default (0x00)
        .... ..0. = ECN-Capable Transport (ECT): 0
        .... ...0 = ECN-CE: 0
    Total Length: 342
    Identification: 0x5a20 (23072)
    Flags: 0x00
        0.. = Reserved bit: Not Set
        .0. = Don't fragment: Not Set
        ..0 = More fragments: Not Set
    Fragment offset: 0
    Time to live: 64
    Protocol: UDP (0x11)
    Header checksum: 0x0890 [correct]
        [Good: True]
        [Bad : False]
    Source: 10.253.0.3 (10.253.0.3)
    Destination: 10.253.0.235 (10.253.0.235)
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootpc (68)
    Source port: bootps (67)
    Destination port: bootpc (68)
    Length: 322
    Checksum: 0x183b [validation disabled]
        [Good Checksum: False]
        [Bad Checksum: False]
Bootstrap Protocol
    Message type: Boot Reply (2)
    Hardware type: Ethernet
    Hardware address length: 6
    Hops: 0
    Transaction ID: 0x7e1c905e
    Seconds elapsed: 0
    Bootp flags: 0x0000 (Unicast)
        0... .... .... .... = Broadcast flag: Unicast
        .000 0000 0000 0000 = Reserved flags: 0x0000
    Client IP address: 0.0.0.0 (0.0.0.0)
    Your (client) IP address: 10.253.0.235 (10.253.0.235)
    Next server IP address: 10.253.0.9 (10.253.0.9)
    Relay agent IP address: 0.0.0.0 (0.0.0.0)
    Client MAC address: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
    Client hardware address padding: 00000000000000000000
    Server host name: h
    Boot file name: /pxelinux.0
    Magic cookie: (OK)
    Option: (t=53,l=1) DHCP Message Type = DHCP ACK
        Option: (53) DHCP Message Type
        Length: 1
        Value: 05
    Option: (t=54,l=4) DHCP Server Identifier = 10.253.0.3
        Option: (54) DHCP Server Identifier
        Length: 4
        Value: 0AFD0003
    Option: (t=51,l=4) IP Address Lease Time = 1 hour
        Option: (51) IP Address Lease Time
        Length: 4
        Value: 00000E10
    Option: (t=58,l=4) Renewal Time Value = 30 minutes
        Option: (58) Renewal Time Value
        Length: 4
        Value: 00000708
    Option: (t=59,l=4) Rebinding Time Value = 52 minutes, 30 seconds
        Option: (59) Rebinding Time Value
        Length: 4
        Value: 00000C4E
    Option: (t=1,l=4) Subnet Mask = 255.255.255.0
        Option: (1) Subnet Mask
        Length: 4
        Value: FFFFFF00
    Option: (t=28,l=4) Broadcast Address = 10.253.0.255
        Option: (28) Broadcast Address
        Length: 4
        Value: 0AFD00FF
    Option: (t=15,l=14) Domain Name = "h.rakugaki.org"
        Option: (15) Domain Name
        Length: 14
        Value: 682E72616B7567616B692E6F7267
    Option: (t=6,l=4) Domain Name Server = 10.253.0.3
        Option: (6) Domain Name Server
        Length: 4
        Value: 0AFD0003
    Option: (t=3,l=4) Router = 10.253.0.1
        Option: (3) Router
        Length: 4
        Value: 0AFD0001
    Option: (t=150,l=4) TFTP server address
        Option: (150) TFTP server address
        Length: 4
        Value: 0AFD0009
    End Option

Frame 8 (356 bytes on wire, 356 bytes captured)
    Arrival Time: Jul  7, 2010 12:37:31.540572000
    [Time delta from previous captured frame: 0.000394000 seconds]
    [Time delta from previous displayed frame: 0.000394000 seconds]
    [Time since reference or first frame: 0.006380000 seconds]
    Frame Number: 8
    Frame Length: 356 bytes
    Capture Length: 356 bytes
    [Frame is marked: False]
    [Protocols in frame: eth:ip:udp:bootp]
Ethernet II, Src: HewlettP_11:45:e0 (00:23:7d:11:45:e0), Dst: Giga-Byt_0a:fb:e8 (00:1f:d0:0a:fb:e8)
    Destination: Giga-Byt_0a:fb:e8 (00:1f:d0:0a:fb:e8)
        Address: Giga-Byt_0a:fb:e8 (00:1f:d0:0a:fb:e8)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
    Source: HewlettP_11:45:e0 (00:23:7d:11:45:e0)
        Address: HewlettP_11:45:e0 (00:23:7d:11:45:e0)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
    Type: IP (0x0800)
Internet Protocol, Src: 10.253.0.3 (10.253.0.3), Dst: 10.253.0.9 (10.253.0.9)
    Version: 4
    Header length: 20 bytes
    Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
        0000 00.. = Differentiated Services Codepoint: Default (0x00)
        .... ..0. = ECN-Capable Transport (ECT): 0
        .... ...0 = ECN-CE: 0
    Total Length: 342
    Identification: 0x15fb (5627)
    Flags: 0x00
        0.. = Reserved bit: Not Set
        .0. = Don't fragment: Not Set
        ..0 = More fragments: Not Set
    Fragment offset: 0
    Time to live: 64
    Protocol: UDP (0x11)
    Header checksum: 0x4d97 [correct]
        [Good: True]
        [Bad : False]
    Source: 10.253.0.3 (10.253.0.3)
    Destination: 10.253.0.9 (10.253.0.9)
User Datagram Protocol, Src Port: bootps (67), Dst Port: bootps (67)
    Source port: bootps (67)
    Destination port: bootps (67)
    Length: 322
    Checksum: 0x1759 [validation disabled]
        [Good Checksum: False]
        [Bad Checksum: False]
Bootstrap Protocol
    Message type: Boot Reply (2)
    Hardware type: Ethernet
    Hardware address length: 6
    Hops: 1
    Transaction ID: 0x7e1c905e
    Seconds elapsed: 0
    Bootp flags: 0x0000 (Unicast)
        0... .... .... .... = Broadcast flag: Unicast
        .000 0000 0000 0000 = Reserved flags: 0x0000
    Client IP address: 0.0.0.0 (0.0.0.0)
    Your (client) IP address: 10.253.0.235 (10.253.0.235)
    Next server IP address: 10.253.0.9 (10.253.0.9)
    Relay agent IP address: 10.253.0.9 (10.253.0.9)
    Client MAC address: Xensourc_16:ac:c5 (00:16:3e:16:ac:c5)
    Client hardware address padding: 00000000000000000000
    Server host name: h
    Boot file name: /pxelinux.0
    Magic cookie: (OK)
    Option: (t=53,l=1) DHCP Message Type = DHCP ACK
        Option: (53) DHCP Message Type
        Length: 1
        Value: 05
    Option: (t=54,l=4) DHCP Server Identifier = 10.253.0.3
        Option: (54) DHCP Server Identifier
        Length: 4
        Value: 0AFD0003
    Option: (t=51,l=4) IP Address Lease Time = 1 hour
        Option: (51) IP Address Lease Time
        Length: 4
        Value: 00000E10
    Option: (t=58,l=4) Renewal Time Value = 30 minutes
        Option: (58) Renewal Time Value
        Length: 4
        Value: 00000708
    Option: (t=59,l=4) Rebinding Time Value = 52 minutes, 30 seconds
        Option: (59) Rebinding Time Value
        Length: 4
        Value: 00000C4E
    Option: (t=1,l=4) Subnet Mask = 255.255.255.0
        Option: (1) Subnet Mask
        Length: 4
        Value: FFFFFF00
    Option: (t=28,l=4) Broadcast Address = 10.253.0.255
        Option: (28) Broadcast Address
        Length: 4
        Value: 0AFD00FF
    Option: (t=15,l=14) Domain Name = "h.rakugaki.org"
        Option: (15) Domain Name
        Length: 14
        Value: 682E72616B7567616B692E6F7267
    Option: (t=6,l=4) Domain Name Server = 10.253.0.3
        Option: (6) Domain Name Server
        Length: 4
        Value: 0AFD0003
    Option: (t=3,l=4) Router = 10.253.0.1
        Option: (3) Router
        Length: 4
        Value: 0AFD0001
    Option: (t=150,l=4) TFTP server address
        Option: (150) TFTP server address
        Length: 4
        Value: 0AFD0009
    End Option

^C8 packets captured

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